import type { Diagnostic } from '@codemirror/lint';
import { RangeSet } from '@codemirror/state';
import type { Extension, Text } from '@codemirror/state';
import { GutterMarker } from '@codemirror/view';
/**
 * Class applied to every gutter cell on a line with an `error` diagnostic.
 *
 * @internal
 */
export declare const criticalGutterLineClass = "cm-gutterElement-critical";
/**
 * Builds gutter markers for the lines where `error` diagnostics start.
 *
 * @param doc - The document associated with the diagnostics.
 * @param diagnostics - The diagnostics to inspect.
 * @returns The gutter markers for lines containing errors.
 * @internal
 */
export declare function _buildCriticalGutterLineMarkers(doc: Text, diagnostics: readonly Diagnostic[]): RangeSet<GutterMarker>;
/**
 * Marks the gutter cells of the lines carrying an `error` diagnostic.
 *
 * @internal
 */
export declare const criticalGutterLines: Extension;
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